Zobrazeno 1 - 10
of 65
pro vyhledávání: '"D Silvey"'
Publikováno v:
Weed Technology. 20:873-876
A field experiment was conducted in 1996 and 1997 to determine snap bean tolerance to halosulfuron based on crop injury, height, and yield. Halosulfuron was applied preemergence (PRE), postemergence (POST), and sequentially PRE followed by (fb) POST
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e6c9a48044daa576689120c50444c29
https://doi.org/10.1614/wt-05-046.1
https://doi.org/10.1614/wt-05-046.1
Autor:
John V. Reynolds, B Leung, D Honeybourne, R M Cayton, M A Roland, Simon Trotter, D Silvey, A B Rajasekaran
Lung cancer is the commonest fatal malignant disease worldwide causing more than 37 000 deaths in the UK per annum.1 The five year survival rate of 5% in the UK compares poorly with rates of up to 14% in some European countries.2 Serious concerns hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f94abb81151bc827adde162cd47b910
https://europepmc.org/articles/PMC2563738/
https://europepmc.org/articles/PMC2563738/
Autor:
S. D. Silvey, D. M. Titterington
Publikováno v:
Biometrika. 61:299-302
where u is a column vector of k components and prime denotes transpose. The D-optimal design problem is to determine a A which maximizes log det M(A). Now log det is a concave function on the set of nonnegative-definite symmetric matrices and so the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22a8954232bee14db001d2be35c2ebae
https://doi.org/10.1093/biomet/61.2.299
https://doi.org/10.1093/biomet/61.2.299
Autor:
Ian Ford, S. D. Silvey
Publikováno v:
Biometrika. 67:381-388
SUMMARY Properties of a design constructed sequentially for a simple nonlinear problem are investigated both theoretically and by simulation. It is proved that the design measure corresponding to the sequential design converges to an optimal measure,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88b37e63155ae6fd65fc31f0e270fa70
https://doi.org/10.1093/biomet/67.2.381
https://doi.org/10.1093/biomet/67.2.381
Autor:
S. D. Silvey
Publikováno v:
Biometrika. 65:553-559
SUMMARY The problem of 'establishing a useful necessary and sufficient condition for a design measure with singular information matrix to be D,-optimal is well known. In this paper a sufficient condition involving a certain type of g-inverse is estab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2214a84a038cf2143648d554ab29f1f
https://doi.org/10.1093/biomet/65.3.553
https://doi.org/10.1093/biomet/65.3.553
Publikováno v:
BSAP Occasional Publication. 4:461-467
The demand for meat is expanding faster than production in many developing countries. Consequently, national and international agencies have devoted considerable effort to increasing livestock production. It is argued in this paper that this concentr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcf6197266cf4810600a2b6575fdd5fe
https://doi.org/10.1017/s0263967x00000835
https://doi.org/10.1017/s0263967x00000835
Autor:
S. D. Silvey, D. M. Titterington
Publikováno v:
Biometrika. 60:21-32
SUMMARY A geometric interpretation of optimal design problems is given. This provides a unified treatment of the equivalence theorems for D-optimal and Ds-optimal designs in the form of duality theorems established by means of Strong Lagrangian Theor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3307faa35a1620b0755e222372575fbc
https://doi.org/10.1093/biomet/60.1.21
https://doi.org/10.1093/biomet/60.1.21
Autor:
S. D. Silvey
Publikováno v:
Journal of the Royal Statistical Society: Series B (Methodological). 31:539-552
SUMMARY For the standard linear model containing several explanatory variables, the precision of estimation of linear parametric functions is analysed in terms of latent roots and vectors of X'X, where X is the matrix of values of explanatory variabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d811b45afa66fdb42bbe5042758d335
https://doi.org/10.1111/j.2517-6161.1969.tb00813.x
https://doi.org/10.1111/j.2517-6161.1969.tb00813.x
Autor:
S. D. Silvey
Publikováno v:
Proceedings of the Glasgow Mathematical Association. 2:47-51
In a previous paper [5] the equivalence of randomisation and normal theory distributions of linear combinations was discussed. In the present paper we discuss the asymptotic randomisation distributions of statistics used in analysis of variance and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39a69162f5ac01c8e1aba701b3cb0204
https://doi.org/10.1017/s2040618500032998
https://doi.org/10.1017/s2040618500032998
Autor:
S. D. Silvey, P. J. Laycock
Publikováno v:
Biometrika. 55:53-66
SUMMARY The polynomial regression model in which the errors are independent and identically distributed, is considered, and attention is focused on the estimation of 85 the coefficient of the term of highest degree. A design D is a set of n values in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adb8383019c7984d4e020581bbdcadb1
https://doi.org/10.1093/biomet/55.1.53
https://doi.org/10.1093/biomet/55.1.53